Table druid_tasks and druid_tasklog did not cleaning in metadata storage

Hello , we are using druid 0.12.3 with postgresql as metadata storage,
Lately we discovered what our database size become 1 gb size. While total cluster almost empty(50 mb, almost everything was deleted using drop/coordinator killing).

When we look into database, current size of our druid database is 873mb.

druid_tasks is 494mb, druid_tasklogs is 197 mb, druid_pendingsegments is 46mb. How this tables should be cleared?

other tables is lower then 1mb.

killing configured in this way :

druid.indexer.logs.kill.enabled=true

druid.indexer.logs.kill.durationToRetain=86400000

druid.coordinator.kill.on=true

druid.coordinator.kill.period=PT1H

druid.coordinator.kill.durationToRetaion=PT1H
druid.coordinator.kill.maxSegments=10000000

druid.coordinator.kill.pendingSegments.on=true